Question

Please anyone help, tomorrow is my maths exam:

= (-32) - (-40)=8. (the answer is in positive)

=(-82)-(-40)=-42. (the answer is in negative)

I Need to know that why is the there a positive 8 and why it came a negative -42 , when the signs in both are same?

pls reply?

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Answer 1

Answer:

because

(-)-(+)=+

(-)-(-)=+

so just remember this

Answer 2

Answer:

the sign of greater number is considered here.

Step-by-step explanation:

i)(-32) - (-40)=8.

》-32+40 ['- '*'-' = '+']

here 40>32 therefore + sign of 40 is considered.

ii)(-82)-(-40)=-42

》-82+40 ['- '*'-' = '+']

here 82>40 therefore - sign of 82 is considered